Cooking vessel



Apr'. 3, 1923, 1,450,687

H. KUNIN I COOKING VESSEL l Original Filed Dec. 9, 1,92()V l JMW@ mimi".

fry. f6 i? Patented Apr. 3, 1923.

UNITED STATES PATENTl Oris.

HARRY KUNIN, or CHICAGO, ILLINoIs, AssIGNOR 'ro MIDWESTMACHINERY l p PRODUCTS Co.,l OF CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

COOKING yvnssnii.' p

Application med ncember 9,1920, serial No. 429,335. Renewed January 22, 1923.

T all whom t may concern.' A

' Be itknown'that I, HARRY KUNIN, a citizen ofthe United-States,fresiding at Chicago, inthe county ofCook and State of Illinois, have inventedL certain new and useful Improvements in.' Cooking Vessels, of which the following is a specification.

The present invention has to do Withce'r-v tain improvements in cooking vessels',"and more particularly relates to improvements in boilers or similar closedvessels. The invention has particular reference to the form of vessels and its cover, and the means whereby said cover may be held in place on the vessel during the cooking operation while nevertheless permitting the cover to be easily removed by the operator.

More particularly the invention relates to a clamping device of such construction that when in place on the vessel, said clamping device will hold the cover very rigidly in placeon the vessel; the vessel itself being peculiarly and especially adapted to receive and co-operate with the clamping device for this purpose. l

Another feature of the invention relates to the form of the clamping device itself. An object in this connection is to provide the clamping device of suchy form that it can be very easily and cheaply manufactured while at the same time possessing a remarkable degree of strength and being admirably adapted to the uses for which it is intended. Other Objects and uses! of the invention will appear from a detailed description of the same which consists in the features of construction and comb-inations of parts hereinafter described and claimed.

In the drawing:

Figure 1 shows a side elevation of a vessel embodying the features of the present invention and having applied thereto a clamping device which is also embodies the features of the present invention, a portion of the vessel of Fig. 1 beingbroken away so as to better illustrate the manner in which the clamping device cooperates with `the upper portion of the vessel-,and with thecover;

Fig. 2 shows a plan view corresponding` to Fig. l;

F ig. 3 shows a perspective view of the clamping device; and

Fig. 4 yshows a side elevation of the clampA ing device. o o

The invention is shown as being applied to a cylindrical vessel 5 whichis provided with the cover 6. Around its upper edge the vessel 5 is provided with an outwardly turned bead 7 which may be conveniently formed'by Hanging and beading outwardly the metal of the upper portion of the vessel. If desired, a rod or wire 8 may be enclosed within the bead so as to reinforce it.

The cover 6 is provided with a down- Wardly depending collar 9 which fits snugly into the upper `portion of the vessel, and with an outwardly extending fla-nge 10 which sets on to the upper edge of the vessel, and preferably the top portion of theV bead 7. Suitable handles such as 11 are provided on the vessel itself and other handles 12 are provided on the cover.

The clamping device per se is illustrated in detail in Figs. 3 and 4. It comprises a U-shaped member 13 of steel or other suiiicie-ntly rigid metal having the upperarm 14 andthe lower arm 15 joined together by the central member 16. The distance between the upper and lower arms is somewhat greater than the combined dimensions of the bead 7 and flange 10 ofthe vessel and cover, s o that these two elements may be embraced between the arms 14 and 15. The S5 arm 15 has its eXtreme end portion 17 upturned so as to provide a hook adapted to .engage the underface of the bead 7 as is clearly illustrated in Fig. 1. If desired, said lip or hooked portion 17 may be given a slight curve to conform to the curvature of the periphery of the vessel itself so as to insure uniform contact over the entire length of the bead 17.

The top arm 14 of the U-shaped member 13 95 projects somewhat beyond the lip 17 so as to accommodate a clamping screw 18 in vertical alignment with said lip. This clamping screw 18 is provided with a milled head 19 by which it is manipulated. On its lower end the clamping screw is provided with an upset head 20; ordinarily the head 2O will be formed integral with the screw 19 by an upsetting process after the screw 1,8 has been threaded through the arm 14.

lV hen the clamping device is applied to the vessel and cover it serves: to rigidly clamp the flangel() down onto the bead 7 by reason of the fact that the clamping screw 18 is in substantial alignment with the lip 17? and owing to the ormof the lip 17.

it in turn engages the lower portion ot the bead 7 in such manner as to make it practically impossible for the clamping device to become disengaged unintentionally after it has been secured in place. This is a very important feature for the reason that in many cooking operationsi such as those in which steam or other vapors are generated, there may be created a substantial pressure within the'vessel which would require an effective clamping device to hold the cover properly in place.

I claim:

In a device of the class described, the combination of a cylindrical vessel having its upper edge portion outwardly flared and downwardly curved to provide an outstanding bead, a cover for said vessel having an outwardly projecting flange adapted to seat on the upper surfaceof said bead, and a clamping device for clamping said flange and bead together, Said demping der@ i11- U-fsiaped @methane its top arm eXtendi'ngfat right 'a'ngles'to its central portion, and having itsI bottom arm extendingati'right angles to its central portion and, terminating at a point, baclr of the point of termination of the top arm,'and having its terminal edge curved upwardly to provide an up-turned lip conforming to the curvature of the` lower tace of the aforesaid bead, and a clamping screw working through the top` arm in a direction at right angles to the top and bottom arms and in substantial alignment with the central portion 4of the Lip-turned lipl aforesaid, substantially as described, f

HARRY KUNLN; 

